Ineed to know the answer with steps for q: 6

Explanation:

There really are no steps. You just have to know the rules.

A

There are 2 digits in 2.5 so there are 2 sig digs.

B

There are 3 digits in 5.32 so there are 3 sig digs

C

Here is your first tricky one. There is either 3 or 4 sig digits. In fact the zero counts: there are digits to the left of the zero. So the zero is one of the sig digs. There are 4.

D

This one is even nastier. there are no none zero numbers to the left of the 0. This zero does not count. There are only 2 sig digs.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..